# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html

# Sets the minimum version of CMake required to build the native library.

cmake_minimum_required(VERSION 3.4.1)
# 设置生成的so动态库最后输出的路径
# set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/../jniLibs/${ANDROID_ABI})

# 支持C++11标准和GNU扩展特性
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.
# 1. 定义so库和头文件所在目录，方面后面使用
set(ffmpeg_lib_dir ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI})
set(ffmpeg_head_dir ${CMAKE_SOURCE_DIR}/ffmpeg)

# 2. 添加头文件目录
include_directories(${ffmpeg_head_dir}/include)

# 3. 添加ffmpeg相关的so库
add_library( avutil
        SHARED
        IMPORTED )
set_target_properties( avutil
        PROPERTIES IMPORTED_LOCATION
        ${ffmpeg_lib_dir}/libavutil.so )

add_library( swresample
        SHARED
        IMPORTED )
set_target_properties( swresample
        PROPERTIES IMPORTED_LOCATION
        ${ffmpeg_lib_dir}/libswresample.so )

add_library( avcodec
        SHARED
        IMPORTED )
set_target_properties( avcodec
        PROPERTIES IMPORTED_LOCATION
        ${ffmpeg_lib_dir}/libavcodec.so )

add_library( avfilter
        SHARED
        IMPORTED)
set_target_properties( avfilter
        PROPERTIES IMPORTED_LOCATION
        ${ffmpeg_lib_dir}/libavfilter.so )

add_library( swscale
        SHARED
        IMPORTED)
set_target_properties( swscale
        PROPERTIES IMPORTED_LOCATION
        ${ffmpeg_lib_dir}/libswscale.so )

add_library( avformat
        SHARED
        IMPORTED)
set_target_properties( avformat
        PROPERTIES IMPORTED_LOCATION
        ${ffmpeg_lib_dir}/libavformat.so )

add_library( avdevice
        SHARED
        IMPORTED)
set_target_properties( avdevice
        PROPERTIES IMPORTED_LOCATION
        ${ffmpeg_lib_dir}/libavdevice.so )
add_library( h264
        SHARED
        IMPORTED)
set_target_properties( h264
        PROPERTIES IMPORTED_LOCATION
        ${ffmpeg_lib_dir}/libh264.so )

include_directories(${ffmpeg_head_dir}/include)


# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.

find_library( # Sets the name of the path variable.
              log-lib

              # Specifies the name of the NDK library that
              # you want CMake to locate.
              log )

# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.


# 配置目标so库编译信息
add_library( # Sets the name of the library.
        native-lib

        # Sets the library as a shared library.
        SHARED

        # Provides a relative path to your source file(s).
        ${CMAKE_SOURCE_DIR}/native-lib.cpp
        # 工具
        ${CMAKE_SOURCE_DIR}/utils/logger.h
        ${CMAKE_SOURCE_DIR}/utils/timer.c
        ${CMAKE_SOURCE_DIR}/media/base_decoder.h
        #编解码
        ${CMAKE_SOURCE_DIR}/media/i_decode_state_cb.cpp
        ${CMAKE_SOURCE_DIR}/media/base_decoder.cpp
        #视频播放器
        ${CMAKE_SOURCE_DIR}/media/video/v_decoder.h
        ${CMAKE_SOURCE_DIR}/media/video/v_decoder.cpp
        ${CMAKE_SOURCE_DIR}/render/video/native_render.cpp
        ${CMAKE_SOURCE_DIR}/render/video/native_render.h
        ${CMAKE_SOURCE_DIR}/render/video/video_render.h
        ${CMAKE_SOURCE_DIR}/play/player.h
        ${CMAKE_SOURCE_DIR}/play/player.cpp
        #使用ffmpeg将视频文件中的音视频分离，并将分离后的音频文件解码为pcm
        ${CMAKE_SOURCE_DIR}/ff/generate_pcm.h
        ${CMAKE_SOURCE_DIR}/ff/generate_pcm.cpp
        ${CMAKE_SOURCE_DIR}/ff/pcm_decoder.h
        ${CMAKE_SOURCE_DIR}/ff/pcm_decoder.cpp
        ${CMAKE_SOURCE_DIR}/ff/pcm_decoder_controller.h
        ${CMAKE_SOURCE_DIR}/ff/pcm_deocder_controller.cpp
        ${CMAKE_SOURCE_DIR}/ff/pcm_real_decoder.h
        ${CMAKE_SOURCE_DIR}/ff/pcm_real_decoder.cpp
        ${CMAKE_SOURCE_DIR}/net/socket_client.cpp
        ${CMAKE_SOURCE_DIR}/net/socket_client.h
        ${CMAKE_SOURCE_DIR}/net/socket_manager.cpp
        ${CMAKE_SOURCE_DIR}/net/socket_manager.h
        ${CMAKE_SOURCE_DIR}/net/socket_server.cpp
        ${CMAKE_SOURCE_DIR}/net/socket_server.h

        )

# 指定编译目标库时，cmake要链接的库
target_link_libraries(

        # 指定目标库，native-lib 是在上面 add_library 中配置的目标库
        native-lib

        # 4. 连接 FFmpeg 相关的库
        avutil
        swresample
        avcodec
        avfilter
        swscale
        avformat
        avdevice

        -lEGL
        -landroid
        -lGLESv2
        # Links the target library to the log library
        # included in the NDK.
        ${log-lib} )